Furnace slag-pocket.



W. W. SMITH.

FURNAGE SLAG POGKET.

APPMOATION FILED 00T.4,1a11.

1,042,06, ate'ntea om. w12.

A ifo may UNrTnD STATES PATENT onrron.

WILLIAM W. SMITH, 0F ENsLnY, ALABAMA. H

l FURNAGE sLAGPocxET. i

To all whom 'it cof/wem:

Re itulrnown that I, WILLIAM W. SMrrH,

a citizen of the United -States of`America residing atiEnsley,- in the county ofJeerson and State of Alabama', have invented cer-y tain new and useful Improvements 1n Fury expense.

By my invention, all vthe Irm'vlten slag or other material will be caught in a receptacle containingyvater 'which seals the openingA 'from the iue to' the slag pocket and 1s sol disposed that thedisintegrated slag can be I shoveled out Withoutmoving the-vessel.

In order that theuse of water, asv indicated, may not result in increasing the moisture in the gas or air, I contract the bottom of the flue opening, causing it -to convergev into an extension lwhich projects down-into the water.. Further I introduce -a'vsupply'of cold Water into. the vessel by a pipe Which discharges underI the Viiue opening a'nd A'therefore keeps the coolest water there and preventsany tendency to steam.

By sealing the flue opening and leavlng the receptacle in'thejslag pocket exposed,

the materialjcaught,therein can be easily shoveled out atany. timewithout shutting down the furnace-.v

' with my invention. Fig. 2 is a ltransversel sectional ,viewtaken along the line --f of .--Fig. 1.

My invention further comprises' thev detailsof constructionmnd' arrangement of parts hereinafter describedand claimed, ref-' erence being had to the accompanying draw- Vl. tional view through a steel furnace equipped Similar reference numerals refer to `similar partsthroughout the drawings.

f I have illustrated my invention inr connection lwith a steel 4furnace 1, equipped with doors 2,v gas tlues 3, which connectwith the vertical gas fines 4, anden: courses 5, whichl Specification of Letters Patent. Application led October 4, 1911. Serial No. 652,839.A

re 1 1s a vertical longitudinal sec- Patenfedocr. 22,191

l connect with the verticalai/r/lues 6. lhelr A air fines 6 are disposed on'leach sideV of the` gaslfflues '4, which latter connect I-with the gas main 7 leadlng from the reversing valve j (not: shoivn). The air lues"`6 arexinclined` toward the furnace center and both nues 4 and 6" have at their bottomv ends centrally dls'po'sed openings '8 which open into the slag pockets 9. The openings 8 are disposed at the bottom of circular 'converging Walls 10, Which are inclined so vas lto cause-all molten slag falling thereon 'torun down and vdrop oli' from the overhangingyannularv g lip 11 Vdown into a -body of Water contained Jin a receptacle 12 which is sea-ted in the slaggpocket. Inorderrto'seal' the openings 8, I provide a depending metal flue 13 con y Y' 5 4 ne'cted by-anfangle iron -14 .to thel bottom plate 15 fastened in the'masonry, and .I rivet l to the bottom end of .line 13a ring shaped 75 angle iron 16,'Which serves asasupport for a brick lining 17 in the' sealing flue.v The jg lower end o'fthis sealing Hue project-s down- Wardly into-and below .the surface of the water level inthe receptacle12,.which YWater -level maintained by an inlet' pipe 18 which discharges Waterthereinto 4at oivnear I the center of. the sealing'flue. An overflow Vpi-pe1'9, near the top of the vessel 12,-c'arries off the surplus Water which vaccorc'lingly circulates outwardly from beneath the opening 8. It Will be noted that the outer end ot-the receptacle 12is slanted so that rake orl shovel may be used to draw out .the

Amolten material which usually disintegrntes upon striking the Water. The pipes In and 19 are disposed at the side of the receptacle so as not to interfere With -the removal of the material therefrom.

' Each of the iues 4. and G- are equipped in -the manner `described with the water receptaclezand opening 8 and sealing iiue 13, and it follows Athat any molten material which Would otherwise tend to vaccumulate in the ,Slag pockets'9.I Will either drop directly down the {lues-and through the opening S vinto the Water or fall upon the inclined walls 10 surrounding the opening 8 and will -'dl'opY from the overhanging edge ll into the 'Weten The overhang is given the edgeto prevent' any tendency of the molten material to accumulate and harden on the sealing flue 13, which would occur by reason ot' the .fact that the flue is cold. It ,will benoted .that the exposed water surface' is well below the active flow of the air and gases in the lues, hencejt will have no tendency to steamf or increase'the moisture in the lues 4: and 6.

Obviously 'my improved mechanism may be utilized in connection with any one or all of the lues of a furnace, and by arranging the receptacle without the liue I avoid any interference with the normal flow of gases (which includes air or the Jfurnace gas) through the, iiu'es.

The necessity of removing any part of the equipment is eliminated by my apparatus and the furnace slag iues can be kept clean at a nominal cost and without shutting down. v

Having thus described my invention, what I claim as new land desire to secure by Letters Patent, is

1. The combination with a furnace having a gas flue which leads upwardly and has la contracted opening at its bottom, of a slag receptacle disposed beneath said opening and lilled with a body of water which surrounds and seals theV wall which surrounds said opening, the water being spaced a substantial distance from they inner wall of the iiue, a wall which surrounds said opening depending downwardly into the body of water 4and tending ,to shield same from the hot gases flowing insaid gas iiue, and means to introducecold water beneath said opening to produce a circulation therefrom" outwardly.

2. The combination, in a steel furnace having upright and horizontalair andv gas flues,

of means to provide for the ready removal,y

Copies of this patent may be [attained `for of slag which tends to accumulate in said horizontal ue, comprising a water receptacle, there being an opening in the bottom of the horizontal iiue disposed beneath the upright flue and in position to collect the slag which falls down said upriv'ht flue, a sealing flue which is overhung by tliebottom walls of such opening and extends from said opening down into the water insaidr'receptile which is disposed so as to' permit the slag to be withdrawn therefrom without Abreaking the SeaLsubStantially as'described..

8. The combination, in a steel furnace having upright air and gas `vlueshavng horizontal portions', `of means to provide for -the ready removalv of slag which tends to accumulate in the horizontalv portions of said flues, comprising a water receptacle spaced from the bot-tom of a horizontal portion'of contracted opening in -its bottom wall, said opening converging` like a hopper to a relatively small 4central outletbeneath the upone of said iues which is provided with a Y vIn testimony whereof I aihx my signature' i in presence of two witnesses.

. WILLIAM W. SMITH. Witnesses: v NoMm WELSH,

R. D. JOHNSTON, Jr.

ve cents each, by addressing the Commissioner of Patents. Washington, D. C. e 

